package Collection;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class ListDemo {
    public static void main(String[] args) {
        List<String>list=new ArrayList<>();
        list.add("1");
        list.add("2");
        list.add("3");
        list.add("4");
        list.add("5");
        System.out.println("list:"+list);
        String e =list.get(2);
        System.out.println(e);

        for (int i=0;i<list.size();i++){
            System.out.println(list.get(i));
        }
        Iterator<String>it= list.listIterator();
        while (it.hasNext()){
            System.out.println(it.next());
        }
        for (String s:list){
            System.out.println(s);
        }
        System.out.println("-------------");

        String old= list.set(2,"six");
        System.out.println("list:"+list);
        System.out.println(old);

        String s= list.remove(2);
        System.out.println("list:"+list);
        System.out.println(s);

        list.add(3,"seven");
        System.out.println(list);


    }
}
